You are given a sentence in English. Your job is to translate the English sentence into Japanese.

By using open educational resources and the generosity of professors who are putting their material free and accessible, we don't need to send our students to buy textbooks.
誰でも自由に使える教材の使用と教授たちが寛大にも無料で教材にアクセスできるようにしてくれているおかげで学生に教科書を買わせる必要がありません